Thee outer circle ring rod inner circle without prior processing and has certain precision.
圆棒的外圆和环形件的内圆需经事先加工并具有一定的精度。
In situ, draw a circle to tell you, you are my ring in my heart.
原地画个圈圈、告诉你、你被我圈在了我的心里。
Draw a black circle behind the ring shape.
后面画一个圈形黑圈。
Circle surface of metal brake ring operated by quenching.
钢制动轮外圆表面经淬火处理。
Draw a circle shape behind the ring.
后面画一个圆形的环。
Draw a circle shape behind the ring.
后面画一个圆形的环。
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